XR33152_17 Datasheet, PDF (7/21 Pages) Exar Corporation – 60V Fault Tolerant 3.0V to 5.5V RS-485/RS-422 Transceivers

XR33152/XR33155/XR33156/XR33158
Electrical Characteristics (Continued)
Driver AC Characteristics - XR33155 (1Mbps)
Unless otherwise noted: V_CC = 3.0V to 5.5V, T_A = T_MIN to T_MAX. Typical values are at V_CC = 5.0V, T_A = 25°C.
Symbol
Parameter
Conditions
Min
Typ
Max
t_DPLH
t_DPHL
|t_DPLH-t_DPHL|
t_DR, t_DF
Driver propagation delay (low to high)
Driver propagation delay (high to low)
Differential driver output skew
Driver differential output rise or fall time
Maximum data rate
t_DZH
t_DZL
t_DHZ
t_DLZ
t_DZH(SHDN)
t_DZL(SHDN)
t_SHDN
Driver enable to output high
Driver enable to output low
Driver disable from output high
Driver disable from output low
Driver enable from shutdown to
output high
Driver enable from shutdown to
output low
Time to shutdown
C_L = 50pF, R_L = 54Ω, Figure 7
1/t_UI, duty cycle 40% to 60%
C_L = 50pF, R_L = 500Ω, Figure 8
C_L = 50pF, R_L = 500Ω, Figure 8
Notes 1 and 2
150
500
150
500
5
50
100
200
300
1
1000
2500
1000
2500
250
250
2500
4500
2500
4500
50
200
600
Units
ns
ns
ns
ns
Mbps
ns
ns
ns
ns
ns
ns
ns
Receiver AC Characteristics - XR33155 (1Mbps)
Unless otherwise noted: V_CC = 3.0V to 5.5V, T_A = T_MIN to T_MAX. Typical values are at V_CC = 5.0V, T_A = 25°C.
Symbol
Parameter
Conditions
Min
Typ
Max
Units
t_RPLH
t_RPHL
|t_RPLH-t_RPHL|
Receiver propagation delay (low to high)
Receiver propagation delay (high to low)
Receiver propagation delay skew
Maximum data rate
t_RZH
t_RZL
t_RHZ
t_RLZ
t_RZH(SHDN)
t_RZL(SHDN)
t_SHDN
Receiver enable to output high
Receiver enable to output low
Receiver disable from output high
Receiver disable from output low
Receiver enable from shutdown to
output high
Receiver enable from shutdown to
output low
Time to shutdown
C_L = 15pF, V_ID = ±2V, V_ID rise and
fall times < 15ns, Figure 9
1/t_UI, duty cycle 40% to 60%
C_L = 15pF, R_L = 1kΩ, Figure 10
C_L = 15pF, R_L = 1kΩ, Figure 10
Notes 1 and 2
200
ns
200
ns
30
ns
1
Mbps
50
ns
50
ns
50
ns
50
ns
3500
ns
3500
ns
50
200
600
ns
NOTES:
1. The transceivers are put into shutdown by bringing RE high and DE low simultaneously for at least 600ns. If the control inputs are in this state for less than 50ns, the device
is guaranteed to not enter shutdown. If the enable inputs are held in this state for at least 600ns, the device is ensured to be in shutdown. Note that the receiver and driver
enable times increase significantly when coming out of shutdown.
2. This spec is guaranteed by design and bench characterization.
REV2B
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